Waste and vent fitting



May 30, 1933. w J, LUFF 1,911,454

WASTE AND VENT FITTING Filed Feb. 16, 1929 2 Sheets-Sheet l I N VEN TOR.

A TTORNE May 30, 1 w. J. LUFF WASTE AND VENT FITTING Filed Feb. 16, 19292 Sheets-Sheet 2 A TTORNEY6 Patented May 30, 1933 V.AV VUMTEDSTATES T NQFFICE WILLARD J. LUFF, OF CLEVELAND HEIGHTS, OHIO WASTEFANTVD vn v'rFITTING Application filed Febriia ry 16,1929. Serial rTo. 340,427.

The present; invention relates, fas indicated, to a waste and ventfitting, and-the primary object thereof'isto provide such a fittingwhich shall be of such dimensions 2; 5 as to be receivedconvenientlywithin awall,

and which shall provide forinlets to the stack having theirouter ends inalignment and having their inner ends so disposed as topreventaccumulation of soil or other solid matter within-the stack. Further ob-'jects of the invention will appear as the description proceeds. To theaccomplishment of the foregoing'and related ends, said invention,"then,consists of the means hereined out in the claims. p "'jThe annexeddrawings and the'following description set forth in detail certainmechanism embodying the invention, such dis closed means constituting,however, but one of various mechanical forms in which the principle ofthe invention may be used. 7

- In said annexed drawings: 1

7 tion thereofyFig. 3 is a vertical section taken substantially upon theline 33 of Fig. 1-; Fig 4 is a vertical section taken substantially uponthe line 4-4 of Fig. 1;

" Fig. 5 is a plan view of a second embodiment of the presentinventi'onyFig. 6 isanelevation of the modification disclosed in Fig. 5;Fig. 7 isa vertical section taken substantially upon the line 77-'ofFig. 5; and- Fig. .8 is a vertical section taken substantially upon theline 88 of Fig. 5. I

Referring more particularly to the embodiment disclosed in Figs. 1 to 4,it will be seen that I have provided a fitting indicated generally at 10and comprising a stack section 11 adapted to be disposed with its axisin a vertical position. A pair of inlet branches 12 and 13 are formed onor secured to said stack section 11. The outer and in- 715 ner endsrespectively of the branch 12 are 7 indicated at 14 and 715, while theouter and inner ends of the branch 13 are indicated respectively at 16and 17. As will be clear,

the outer ends 14 and 16 ofthe branches 12 and 13 are disposed inalignment with tirely outside of the stack section 11.

the branches 12 and 13 are separated only after fully described andparticularly pointinlet branches aredispo'sed adjacent each Fig. 1 is aplanview of one embodiment ,o'f said branches.

of my 'invention; Fig. 2*isa side elevaeach other, and in suchiaposition that a vertical plane including their axes liesen- It willfurther be noted that the axes of the {t inner ends 15 and 17 of thebranches 12'and 13 ineet each other in an acute angle open- .ing towardsaid plane, and meet the axis of the stack section 11 in acutefupwardly.opening angles. The inner ends 15 and 17 of k by a thin'fin of materialindicated at 18. The above described structure provides .for dischargeof waste material from fixtures through the branches 12 and 13 and intothe stack section 11, such discharge entering' the stack section at anangleto theaxis thereof and in a downward direction. Inasmuch as theinner ends 15 and i the two other, instead of opposite each other, thereis no possibility of a deposition within one of said branches of; solidmaterial in the stream entering the stack through the other It will benot-ed time boabmwan 19 of tlie'branch 12 inclines downwardly from itsouter to its inner end while the top wall 20 thereof lies in'ahorizontal plane froine'nd to end. Likewise, the bottom wall 21 of" thebranch, 13 inclines downwardly from its outer to its inner end whileth-eouter wall 22 thereof is included in a single horizontal plane. As iswell known, a streamof liquid fclosed inFigs. 5 to '8, it will abe seenthat-I have provided a fitting indicated] generally at 30 comprisingastack section; 31' anda pair of inlet branches 32 and 33 The outer andinner ends of. the branch 32; are indi- 3 1m outer and inner ends of thebranch 33 are indicated respectively at 36 and 37. As in the previousmodification, the outer ends 34 and 36 of the two branches are disposedin alignment and in such a position that a vertical plane includingtheir common axislies entirely outside of the stack portion 31. Theinner ends and 37 are so disposed that their axes meet each other in anacute angle opening toward the vertical plane above mentioned and meetthe axisv of the stack section 31 in upwardly opening acute angles, saidends being separated, where they open into the stack section 31, only bya'thin fin of material 38.

As in the previously described modification, the bottom walls 39 and 41of said branches 32 and 33 are curved downwardly from-their outer totheir inner ends, but in the present modification, the vent-openings arenot provided, the top walls and'42 being likewise curved downwardly fromtheir outer to their inner ends.

In. certain of the claims, the terms ver tical and horizontal have beenused. It is to be understood that these terms are used in a relativesense only, being intended to define direction respectively aligned withand perpendicular to the axis of the main section, it being understoodthat the main section is-not necessarily mounted in an absolutelyjvertical position. The use of these terms in ,this relation hasbeen-necessitatedby. the limitative effect of the term parallel. A planeparallel to a line cannot, of course, include that line and it is notintended to limit all of the claims to a struc ture in which the planeincluding the axes of the outer ends of the branches and paral lel tolongitudinal lines in the surface of the mam section excludes the axisof said main 7 section. a a

tially horizontal waste pipesections, the out .Ot her modes of applyingthe principle of my ln-vention may be employed instead of theoneexplained, change being made as regards, the mechanism herein disclosed,proyided the means stated by any of the follow ingclaims or theequivalent of such stated means be employed. 1

I I therefore particularly point out and distinctly claimas myinvention:

1'. In a waste and vent fitting, a main portion forming a passageway andhaving its lower end adapted for connect-ion to a waste ipipe sectionand its upper endadapted for connection; to a vent pipe section, and apair of wasteiinlet portions each forming a passageway and having theirrespective outer ends adapted :for connection to substansageway will beapproximately tangent to the main passageway, each of said inletpassages curving downwardly and inwardly toward themain passagewayforming a substantially downwardly faced defiector'surface betweenthetwo inlet passages, the tops of said inlet passageways beingapproximately horizontal. 7

2 In a waste and vent fitting, a main portion forming a passageway andhaving its lower end adapted for connection to a waste pipe section andits upper end adapted for connection to a vent pipe section, and a pairof waste inlet portions each forming' a passageway and having theirrespective outer ends adapted for connection to substantially horizontalwaste pipe sections, the outer ends of the inlet sections havingsubstantially a common axis, so positioned that if a, cross section ofthe outer end-of the inlet passageway be projected axially saidpassageway will intersect the main passageway, and the axis of each ofsaid inlets being aligned outside of said main passageway, each of saidinlet passages curving downwardly and, inwardly toward the. mainpassageway forming a substantially downwardly faced deflector surfacebetween the two inlet passages, the'tops of said inlet passageways beingapproximately horizontal.

3. In a waste and vent fitting, a main portion forming a passageway andhaving its lower end adapted for connection to a waste pipe section andits upper end adapted for connect-ion to a vent pipe section, andfawaste inlet portion forming a passageway and having its outer endadapted for connection to a substantiallyhorizontal waste pipe section,the outer end of said inlet section having an axis, so positioned thatif a cross section. of said outer end be projected axially saidpassageway will intersect the main passageway, the axis of said inletbeing aligned outside of said main passageway, said inlet passagewaycurving downwardly and in? wardly toward the main passageway forming asubstantially downwardly faced defiector surface, the-top of. said inletpassagewaybeing approximately horizontal.

Signed by me this 5th day of February,

.. WILLARD J. LUFF.

